WebGL Fingerprint Defender

Name: WebGL Fingerprint Defender
Rating: 3.5556 (36 reviews)
Author: ilGur

By: ilGur

Defending against WebGL fingerprinting by reporting a fake value.

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Features & Capabilities

WebGL Fingerprint Defender is a browser extension designed to enhance your online privacy by masking your real WebGL fingerprint. Instead of blocking the WebGL API—which can cause issues—it cleverly reports a random fake value by adding subtle noise to your actual fingerprint. This fake fingerprint refreshes every time you reload a page or visit a new website, helping to prevent tracking.

This add-on effectively spoofs both common types of WebGL fingerprints: those derived from WebGL constants and those created from rendered WebGL images. It operates discreetly without any toolbar icons, and you can easily disable it from your browser's extensions page.

For comprehensive fingerprint protection, consider pairing it with our other add-ons like Canvas Fingerprint Defender and AudioContext Fingerprint Defender. For support, feature requests, or to report bugs, visit the extension's homepage.

User Growth & Download Statistics

Add-on Privacy & Security

By:

ilGur

Daily users:

1,526 1

Rating:

3.56

(36)

Version:

0.1.9 Last updated: 2026-05-30

Version code:

6284138

Creation date:

2019-05-29

Risk:

Permissions:

Content scripts matches:

Size:

59.53KB

Email:

il*****@yandex.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-11

Compare stats and ranking:

Ranking

# 2,576 ▼ 8

Other rankings

#234 in Tabs

#19 in value keyword 22 ▼ 1

#21 in wa sender keyword 30

#43 in defi keyword 32 ▲ 2

#59 in print keyword 54 ▲ 1

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Other platforms

WebGL Fingerprint Defender (v0.1.9)

100,000 3.47

(32)

WebGL Fingerprint Defender (v0.1.9)

3,137 5.00

(2)

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

ilGur

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/webgl-fingerprint-defender/

Email:

il*****@yandex.com

Website:

https://mybrowseraddon.com/webgl-defender.html

User Reviews

Users say the add-on successfully randomizes WebGL fingerprints and improves privacy, as confirmed by testing. Major complaints repeated across reviews: it breaks Google Maps and other sites, generates intrusive desktop notifications, lacks per-site whitelisting or an easy temporary disable, and offers no static-fingerprint option. These trade-offs between protection and site compatibility are the main themes.

Pros

Effectively randomizes/spoofs the WebGL fingerprint (users report different IDs on tests).
Provides WebGL fingerprinting protection, improving privacy against tracking.
Confirmed working in multiple tests/sites by users (e.g., browserleaks/webbrowsertools).
Simple to enable and use (users report it does what it’s supposed to do when active).

Cons

Breaks Google Maps (black screen, missing UI) — repeatedly reported.
Causes frequent/annoying desktop notifications that many users find intrusive.
Compatibility problems with some sites (e.g., Twitch) — site features may be disabled or degraded.
No per-site whitelist or easy temporary disable; users must disable the add-on entirely to use affected sites.
No option to use a static/spoofed fingerprint (only continuous/randomized spoofing).

Recent reviews

Unfortunately, it doesn't work. I tested my browser's WebGL fingerprint both before and after installing the addon, and it remained exactly the same. No change at all.

by Fi*****, 2026-04-26

by Fi*****, 2026-04-18

by Fi*****, 2025-10-14

View all user reviews ›

Is WebGL Fingerprint Defender Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

WebGL Fingerprint Defender requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

WebGL Fingerprint Defender is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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